I’m a purple gal also, and I have a gazillion coloring books and as many pens / pencils / markers!! Stress reliever and helps with boredom at times.
If you ask Bart nicely and provided he is in a good mood in the Ask Bart Anything thread, he might color the squares above your avatar purple.
As for writing utensils only about 3 coffee cans worth here, I went through a phase of seeking the perfect mechanical pencil, and found colored leads to fit them. Many .046" (1.1mm) and (.9mm) and things that were discontinued 20 years ago. (For some reason they manufacturers got focused more on .7 and .5mm but the leads break too much) For markers, my all time favorite - Pentel Sign pens. For regular ink - nothing beats the regular Crystal Bic or "Biro." They made a bold point version I really like. Never really cared for the gel inks or rollerball style pens - too scratchy on paper.
I may have posted some of the collection here, I know I did on the old country.